Adjustable automobile seat



y 6, 1952 R. 5. KING ADJUSTABLE AUTOMOBILE SEAT 2 SHEETS--SHEET 1 Filed Aug. 15, 1949 3maentor May 6, 1952 R. 5. KING ADJUSTABLE AUTOMOBILE SEAT 2 SHEETS SHEET 2 Filed Aug. 15, 1949 Patented May 6, 1952 UNITED STATESPATENT OFFICE ADJUSTABLE AUTOMOBILE SEAT Robert S. King, Bonners Ferry, Idaho Application August 15, 1949, Serial No. 110,394

6 Claims. (01. 155-88 l My present invention relates to an improved adjustable automobile seat of the type adapted to be vertically raised or lowered by mechanical power to the height best suited to the operator.

According to my invention the mechanical power is applied equally at a plurality of points under the seat so that the seat will be uniformly raised or lowered. An electric motor of the reversing type is employed as the primary power source, and alternate means for actually lifting or lowering the seat are shown including hydraulic and screw jack appliance.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention according to the best mode I have thus far devised, but it will be understood that various changes and alterations may be made in the exemplified structure within the scope o the appended claims.

In the drawings:

Fig. 1 is a perspective view of the seat according to my invention showing parts of the adjusting means in dotted lines.

Fig. 2 is a transverse vertical sectional view through the seat.

Fig. 3 is a sectional view at line 3-3 of Fig. 2.

Fig. 4 is a sectional view of the gear pump.

Fig. 5 is a schematic View of the operating means.

Fig. 6 is a top plan view of a modified power means.

Fig. '7 is an enlarged vertical sectional View of one screw jack elevator.

Referring now to the drawings wherein I have illustrated the present preferred embodiment of my invention, I use a seat frame 2 for the removable seat 4 and to which the back rest Bis secured.

The seat comprises a rubber cushion 8 having conventional upholstery l8 and rests upon a flat plate 12 formed with holes [3 therethrough. A frame [4 is secured to an angle support l6 which also supports the plate I2.

A second angle support l8 carries the support It, and is bolted at 26 to a pressed metal plate 22 having spaced inverted wells 24 extending up through the holes l3. Cylinders 26 are located within the wells and have upper heads 28 and lower heads 30 and contain piston rods 32 and piston heads 34. The outer ends of the piston rods have feet 38 secured by pins 38 and are secured to the upper guide tracks 46 supported on rollers 42 and fixed tracks 44 to provide for forward or rearward adjustment of the seat under control of conventional mechanism, not shown.

Located under the seat, I use a gear case 46 having arcuate inner walls 48 forming communieating chambers for the gears 58 on shafts 52, and driven gear 54 keyed at 56 on shaft 58 and comprising a gear pump.

A beveled gear on shaft 58 is engaged by a beveled gear .62 on shaft 64 which is driven by a reversing electric motor 66 having in its circuit a reversingswitch 68 and an on and off switch 18.

Drilled bosses 12 on the gear case between each chamber receive the pipes 14 which connect as at 15 with the cylinder at opposite sides of the piston head and as indicated by the arrows in Fig. 4 operation of the gear train in one direction will force the cylinder up with relation to the fixed piston head, and in the other direction down to raise or lower the seat.

In Figs. 6 and 7 I have shown a modified form of my invention wherein a cylinder casting 16 is located in the well 24 and is threaded to receive a screw 18 which has a sheave 80 secured thereon by pin 82 and the lower end of the screw terminates in a ball 84 seated in bearing block 86 and secured by cap 88. A cable 90 has a bight 92 about each sheave 88 and is driven by sheave 94 on shaft 96 which has a motor 98 driven as described above with relation to motor 86. Rotation of shaft 96 will move the cable and simultaneously rotate the screws 18 to raise or lower the castings l6 and the seat.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is:

1. An automobile seat having a flat plate thereunder, coacting angle frame supports supporting the seat plate, and a supporting plate carrying the frame supports, inverted wells in the latter plate, cylinders in the wells, and means supporting the cylinders and adapted to raise or lower the cylinders to effect vertical adjustment of the seat.

2. An automobile seat having a flat plate thereunder, coacting separable angle frame supports supporting the seat plate, and a supporting plate carrying the frame supports, inverted wells in the latter plate, cylinders in the wells, and means supporting the cylinders and adapted to raise or lower the cylinders to effect vertical adjustment of the seat.

3. An automobile seat having a fiat plate thereunder, coacting angle frame supports supporting the seat plate, and a supporting plate carrying the frame supports, inverted wells in the latter plate, cylinders in the wells, and means including cable rotated screws in the cylinders to raise or lower the cylinders to efiect vertical adjustment of the seat.

4. An automobile seat having a supporting plate, an angle support on the plate, inverted wells in the plate, cylinders in the wells, and means supporting the cylinders and adapted to raise or lower the cylinders to eifect vertical adjustment of the seat.

5. An automobile seat having a flat plate thereunder, coacting supports supporting said plate, a supporting plate carrying said supports, inverted wells in the latter plate, cylinders in the wells, and means supporting the cylinders and adapted to raise or lower the cylinders to efiect vertical adjustment of the seat.

6. An automobile seat having a fiat plate thereunder, a supporting plate supporting the fiat plate, inverted wells in the supporting plate, cylinders in the wells, and means carrying the cylinders and adapted to raise or lower the cylinders to effect vertical adjustment of the seat.

ROBERT S. KING.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,104;,390 Stanley July 21, 1914 2,063,122 Richardson Dec. 8, 1936 2,270,233 Shaw Jan. 20, 1942 2,510,517 Osinski June 6, 1950 FOREIGN PATENTS Number Country Date 51,276 enmark 1- Feb. 5, 1936 

